Tony, a top modern hairstylist, accidentally traveled to Shanghai in 1930. In order to survive, he formed a contract with Su Manqing, a female underground party fighter. In his hands are hair clippers and frying spoons, while on her shoulders is the responsibility and pretense of family and country. When the revolving lamppost of the barber shop reflects the secret identity of the guest, and when the aroma of a bowl of Yangchun noodles covers up the smoke of intelligence transmission, two souls who started out by using, on the blade and the tip of the tongue, compose a romantic spy story about knowing each other in troubled times.
